That is funny. I hope it's not true. Wavy Gravy was-is one of the whatever it was- he was it, guys from 60's Berkeley counter culture. I saw him and Country Joe McDonald in Oakland a few years ago. They both are still cool without being insane.

How much am I genetically related?

So I know that I'm related to my
Aunts/uncles 25%, genetically. How much am I related genetically to 2 of my uncles whose mother is not my grandma?

If you are 18 you may petition the court and pay the fees, if the court allows the name change then you will have to notify numerous government agencies as well as you medical, dental and vision providers, but Family Court Services should provide information on that.
This is a legal issue not a Genealogical one .

Source(s):

Legal assistant at one time , & Genealogical researcher 40+ years

It is probably a variant of Bachelor.
Supported by this page
http://www.oocities.org/heartland/trail/...

The name meant young unmarried man or a knights' squire and was an occupation or characteristic identifier, and was used in the UK. like Smith, Hooper and Fletcher, it then became a surname. The word bachelor has old French origins